7 - https://drive.google.com/file/d/1lFvvnQnZiWxTJEy2Rf26W6UB6EN9RY7Q/view?usp=sharing
8 - https://drive.google.com/file/d/1ipXBNf0Sx8vGPTxSJ6NiPaamEVgYduPG/view?usp=sharing